基于三支决策的荧光分子断层成像重建结果后处理

Post-processing based on three-way decisions for the recovered results of fluorescence molecular tomography

为了去除荧光分子断层成像重建结果中的伪信息,该文利用三支决策理论对重建结果进行分类。将荧光分子断层成像重建结果看作论域,利用三支决策思想并设计阈值,将结果划分成3个互不相交的区域:荧光目标区域、背景区域和边界区域。将荧光目标区域和边界区域作为最终的重建结果。数字鼠仿真实验和真实物理仿体实验结果表明,基于三支决策的后处理方法能改善荧光分子断层成像重建图像质量。

Three-way decisions(TWD),which is a new information processing method in recent years,are utilized for the recovered results of fluorescence molecular tomography(FMT).The reconstructed results of FMT can be seen as an universe,and it can be divided into three disjoint regions based on TWD and thresholds:fluorescent target region,boundary region and background region.The fluorescent target region is the final reconstructed results of FMT.Numerical simulation experiments and physical phantom experiments show that the post-processed results based on TWD are improved.